Lung cancer, a common cancer of the respiratory system, is detected early and many of them will be surgically removed. Surgical treatment has been recognized as the treatment of choice for lung cancer, and the treatment plan should be selected based on the clinical stage of lung cancer. Radical resection is by far the only treatment that has the potential to cure lung cancer patients and restore them to a normal life. Patients must be evaluated before surgery to see if they can tolerate the procedure. These tests usually include: clinical physical examination, pulmonary ventilation function, blood tests, etc. For marginal patients, lung perfusion scans should be used to more accurately assess lung function, or endurance tests and coronary angiography to assess cardiac function. Indications for lung cancer surgery: 1. The primary lesion has been removed or the disease has been completely controlled. 2.The pathological tissue type of the primary disease is clear. 3.Metastases are confined to the lung without extra-pulmonary metastases. 4.The lesion can be completely resected. 5, The remaining lung function is normal after complete resection of the lesion. Other factors should be considered during surgery, such as the primary tumor is renal cell carcinoma, fibrosarcoma, etc. should be actively operated, and the 5-year survival rate is higher after resection of metastases. The longer the time interval between resection or cure of primary tumor and the appearance of metastatic lung cancer, the better the treatment effect of metastatic lung cancer. Recurrence of lung metastatic cancer after surgery can still be operated again. Surgery for lung cancer: Regardless of stage I or stage I surgery, metastatic lung cancer should be removed completely and normal lung tissues should be preserved to the maximum extent. Unlike the primary lung cancer, try to wedge resection. Conventional thoracic surgery incision is more traumatic, and thoracoscopic surgery has unique features. In general, the survival of those with resected metastatic lung cancer is significantly longer than that of those without resection. Overseas reports show that through comprehensive treatment, the 5-year survival rate of resected metastatic lung cancer is 13-50% for renal cell carcinoma, 25-40% for soft tissue sarcoma, and 20-40% for osteoblastoma. Other tumors such as breast cancer and colorectal cancer can also achieve long-term survival.